Fossilized lungfish of a Dipterus on original matrix or rock.

A fossilized lungfish of a Dipterus valenciennesi from the Achanarras Limestone Member, Old Red Sandstone at the Achanarras Quarry in Caithness, Scotland. These basal lungfish are found in various Devonian-aged deposits in Europe. #FossilFriday

#fish #lungfish #fossil #paleontology #dipterus